<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Thanks for the charter and for pushing this forward,<div class=""><br class=""></div><div class="">I would like to add that we got another expression interest by the AMIGA group at the Instituto de Astronomía de Andalucía (IAA), in Spain, who should be added tot he list of interested observatories/groups if possible in the charter below before sending it to exec for approval.</div><div class=""><br class=""></div><div class="">Best regards,</div><div class=""><br class=""></div><div class="">Bruno</div><div class=""><br class=""></div><div class=""><br class=""><div class=""><div><br class=""><blockquote type="cite" class=""><div class="">On 16 Feb 2020, at 13:23, Mark Allen <<a href="mailto:mark.allen@astro.unistra.fr" class="">mark.allen@astro.unistra.fr</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><meta http-equiv="Content-Type" content="text/html; charset=utf-8" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-kerning: none" class="">Dear Bruno, Mark, Francois and CSP,</span></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-kerning: none" class=""><br class=""></span></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class="">Following my message on 31 Jan, and with your help, we received input from a number of different projects on the draft charter and motivation text for a Radio Astronomy Interest Group in IVOA. I’ve integrated the comments as best as I could, and I updated charter and motivation are below.</div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><br class=""></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class="">I think that this is ready to be proposed to the IVOA Exec, and that we should go ahead and ask for it to be an agenda item for Exec meeting on Tuesday.</div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><br class=""></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class="">cheers,</div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class="">Mark</div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><br class=""></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-kerning: none" class=""><b class=""><br class=""></b></span></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-kerning: none" class=""><b class="">IVOA Radio Astronomy Interest Group</b></span></div><div style="margin: 0px; font-stretch: normal; line-height: normal; min-height: 17px;" class=""><span style="font-kerning: none" class=""></span><br class=""></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-kerning: none" class=""><b class="">Charter:</b></span></div><div style="margin: 0px; font-stretch: normal; line-height: normal; min-height: 17px;" class=""><span style="font-kerning: none" class=""></span><br class=""></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-kerning: none" class="">The group shall define requirements for the representation of radio astronomy data in the VO through:</span></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-kerning: none" class="">• development of use cases for data discovery, access and visualization.</span></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-kerning: none" class="">• identification of metadata concepts needed by radio astronomy data that are not currently supported by the VO</span></div><div style="margin: 0px; font-stretch: normal; line-height: normal; min-height: 17px;" class=""><span style="font-kerning: none" class=""></span><br class=""></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-kerning: none" class="">The group will provide a well identified point of contact for radio projects with IVOA, and actively encourage their use of VO standards and protocols.</span></div><div style="margin: 0px; font-stretch: normal; line-height: normal; min-height: 17px;" class=""><span style="font-kerning: none" class=""></span><br class=""></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-kerning: none" class="">The group will organize sessions focused on radio astronomy data at IVOA meetings </span></div><div style="margin: 0px; font-stretch: normal; line-height: normal; min-height: 17px;" class=""><span style="font-kerning: none" class=""></span><br class=""></div><div style="margin: 0px; font-stretch: normal; line-height: normal; min-height: 17px;" class=""><span style="font-kerning: none" class=""></span><br class=""></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-kerning: none" class=""><b class="">Motivation:</b></span></div><div style="margin: 0px; font-stretch: normal; line-height: normal; min-height: 17px;" class=""><span style="font-kerning: none" class=""></span><br class=""></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-kerning: none" class="">Radio astronomy has several domain-specific requirements that need to be fulfilled if radio astronomy data is to be well-served by the VO. While there has been recent work on multi-dimensional data relevant for both radio and other wavebands, there remain areas in which new concepts/standards, or extensions of existing ones are needed for radio astronomy. This includes data products from the wide variety of radio astronomy observations from single dishes to correlated visibilities from interferometers and involving (time, frequency, beam properties, polarization, Faraday rotation measures etc.)</span></div><div style="margin: 0px; font-stretch: normal; line-height: normal; min-height: 17px;" class=""><span style="font-kerning: none" class=""></span><br class=""></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-kerning: none" class="">The formation of this group is particularly timely, given the ramp-up of radio astronomy projects that will generate large volumes of both raw data and processed images. The groups and projects that have expressed interest to be involved include:</span></div><div style="margin: 0px; font-stretch: normal; line-height: normal; min-height: 17px;" class=""><span style="font-kerning: none" class=""></span><br class=""></div>
<ul class="">
<li style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-kerning: none" class="">ALMA</span></li>
<li style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-kerning: none" class="">NRAO’s Science Ready Data Products Initiative (VLA data and user-defined ALMA data products)</span></li>
<li style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-kerning: none" class="">ASKAP and MWA (CASDA, MWA ASVO, Australian SKA Regional Centre)</span></li>
<li style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-kerning: none" class="">The Canadian Initiative for Radio Astronomy Data Analysis (CIRADA), which will produce high level data from the VLA Sky Survey, the CHIME telescope and surveys with ASKAP.</span></li>
<li style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-kerning: none" class="">FAST (Five-hundred-meter Aperture Spherical Telescope) </span></li>
<li style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-kerning: none" class="">SKA - SKAO</span></li>
<li style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-kerning: none" class="">ASTRON (LOFAR, APERTIF, WSRT, …)</span></li>
<li style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-kerning: none" class="">The ESCAPE project, also supporting connection to VO for LOFAR, JIVE, and SKA (also brings results of ASTERICS and AENEAS projects)</span></li>
<li style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-kerning: none" class="">MeerKAT, and the South African Inter-University Institute for Data Intensive Astronomy (IDIA)</span></li>
<li style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-kerning: none" class="">INAF Division for Radioastronomy - Working Group for radio telescopes data archive</span></li>
</ul><div style="margin: 0px; font-stretch: normal; line-height: normal; min-height: 17px;" class=""><span style="font-kerning: none" class=""></span><br class=""></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-kerning: none" class="">Many of these projects are planning their science platforms and ways users will find/access/use the data. By providing the necessary standards, the IVOA can help to ensure that VO protocols can be integrated into these efforts from an early stage, thus enabling interoperability and data discovery both within radio astronomy and between radio astronomy and other wavelengths</span></div><div style="margin: 0px; font-stretch: normal; line-height: normal; min-height: 17px;" class=""><span style="font-kerning: none" class=""></span><br class=""></div><div style="margin: 0px; font-stretch: normal; line-height: normal; min-height: 17px;" class=""><br class=""></div><div style="margin: 0px; font-stretch: normal; line-height: normal; min-height: 17px;" class=""><br class=""></div><div class="">
<div style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class="">Mark Allen</div><div style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class="">Director CDS<br class="">+33 (0)7 84 07 87 57<br class=""><a href="mailto:mark.allen@astro.unistra.fr" class="">mark.allen@astro.unistra.fr</a><br class=""><a href="http://cdsweb.u-strasbg.fr/~allen" class="">http://cdsweb.u-strasbg.fr/~allen</a></div>
</div>
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